The GMC Sierra 1500 IV (GMTK2XX) Crew Cab Short Box, equipped with the 6.2 EcoTec3 V8 engine and automatic transmission, represents a significant iteration in GMC’s full-size pickup truck lineage. Produced from 2013 to 2014, this variant occupied a premium position within the fourth-generation Sierra 1500 lineup, offering a blend of substantial power, towing capacity, and interior comfort. It was a key model in GMC’s strategy to appeal to buyers seeking a more refined and capable truck than the base models, competing directly with offerings from Ford, Ram, and Chevrolet.
Technical Specifications
| Brand | GMC |
| Model | Sierra 1500 |
| Generation | Sierra 1500 IV (GMTK2XX) Crew Cab Short Box |
| Type (Engine) | 6.2 EcoTec3 V8 (420 Hp) Automatic |
| Start of production | 2013 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (extra urban) | 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 5.6 kg/Hp, 179.6 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 266.5 Nm/tonne |
| Power | 420 Hp @ 5600 rpm |
| Power per litre | 68.2 Hp/l |
| Torque | 623 Nm @ 4100 rpm (459.5 lb.-ft. @ 4100 rpm) |
| Maximum engine speed | 6000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | L86 |
| Engine displacement | 6162 cm3 (376.03 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.25 mm (4.06 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 11.5:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 14.8 l (15.64 US qt | 13.02 UK qt) |
| Kerb Weight | 2338 kg (5154.41 lbs.) |
| Max. weight | 3175 kg (6999.68 lbs.) |
| Max load | 837 kg (1845.27 lbs.) |
| Trunk (boot) space – minimum | 1512 l (53.4 cu. ft.) |
| Fuel tank capacity | 98 l (25.89 US gal | 21.56 UK gal) |
| Permitted trailer load with brakes (12%) | 4400 kg (9700.34 lbs.) |
| Length | 5829 mm (229.49 in.) |
| Width including mirrors | 2032 mm (80 in.) |
| Height | 1884 mm (74.17 in.) |
| Wheelbase | 3645 mm (143.5 in.) |
| Front track | 1747 mm (68.78 in.) |
| Rear (Back) track | 1716 mm (67.56 in.) |
| Ride height (ground clearance) | 222 mm (8.74 in.) |
| Minimum turning circle (turning diameter) | 14.4 m (47.24 ft.) |
| Approach angle | 16.8° |
| Departure angle | 23.9° |
| Ramp-over (brakeover) angle | 19.0° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission Hydra-Matic |
| Front suspension | Independent coil spring |
| Rear suspension | Rigid axle suspension, Leaf spring |
| Front brakes | Ventilated discs, 330×30 mm |
| Rear brakes | Ventilated discs, 345×20 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/70R17; 265/70 R17 |
| Wheel rims size | 8J x 17 |
INTRODUCTION
The 2013-2014 GMC Sierra 1500 Crew Cab Short Box with the 6.2L EcoTec3 V8 and automatic transmission was positioned as a premium offering within the GMTK2XX platform. This generation of the Sierra 1500 represented a significant redesign, focusing on improved fuel efficiency, enhanced interior refinement, and increased capability. The Crew Cab configuration provided ample passenger space, while the short box offered a balance between cargo capacity and maneuverability. This particular variant aimed to deliver a powerful and comfortable driving experience for buyers who frequently tow or haul, or simply desired a high-end full-size pickup.
Powertrain & Engine Architecture
At the heart of this Sierra 1500 variant lies the L86 6.2-liter EcoTec3 V8 engine. This engine is characterized by its aluminum cylinder heads and block, direct fuel injection, and active fuel management (cylinder deactivation) system. The direct injection system, coupled with a relatively high 11.5:1 compression ratio, contributes to both power and efficiency. The valvetrain utilizes an overhead valve (OHV) configuration. The engine produces 420 horsepower at 5600 rpm and 459.5 lb.-ft. of torque at 4100 rpm. This power is delivered through a six-speed Hydra-Matic automatic transmission, known for its smooth shifting and durability. The transmission was calibrated to provide responsive acceleration and efficient cruising, with gear ratios optimized for both towing and everyday driving.
Driving Characteristics
The 6.2L V8 and automatic transmission combination provided a noticeably different driving experience compared to the lower-displacement engines offered in the Sierra 1500 lineup. Acceleration was brisk, and the truck felt confident when merging onto highways or passing other vehicles. While not as fuel-efficient as the 4.3L or 5.3L V8 options, the 6.2L offered a substantial power advantage. The automatic transmission generally shifted smoothly, although some drivers noted a slight hesitation during downshifts. The Crew Cab configuration and short box length contributed to a comfortable ride, but the truck’s substantial weight was still noticeable, particularly when unladen. Towing performance was a strong suit, with the 6.2L engine providing ample torque to handle substantial loads.
Equipment & Trim Levels
The 6.2L EcoTec3 V8 was typically offered on higher trim levels of the Sierra 1500, such as the SLT and Denali. Standard features included air conditioning, power windows and locks, a rearview camera, and a basic infotainment system. Higher trims added features like leather upholstery, heated and ventilated front seats, a premium sound system, and advanced safety technologies. Optional extras included a navigation system, a sunroof, and various appearance packages. The interior design emphasized comfort and functionality, with a spacious cabin and user-friendly controls.
Chassis & Braking
The GMTK2XX Sierra 1500 featured a fully boxed frame, contributing to its rigidity and strength. The front suspension utilized an independent coil spring design, while the rear suspension employed a traditional leaf spring setup. This configuration provided a good balance between ride comfort and load-carrying capacity. Braking duties were handled by ventilated disc brakes at all four corners, with ABS standard. The braking system was adequately sized for the truck’s weight and provided confident stopping power, even when towing.
Market Reception & Comparison
Critics generally praised the 6.2L EcoTec3 V8 for its power and refinement. However, some noted that its fuel economy was not class-leading. Compared to the 5.3L V8, the 6.2L offered a significant performance boost but came at a higher price point. The 6.2L variant was often seen as a direct competitor to the Ford F-150’s 6.2L V8 and the Ram 1500’s 5.7L Hemi V8. In terms of reliability, the EcoTec3 engines were generally considered to be fairly dependable, although some owners reported issues with oil consumption and active fuel management system components.
Legacy
The 2013-2014 GMC Sierra 1500 6.2L EcoTec3 V8 remains a popular choice in the used truck market. Its combination of power, capability, and comfort continues to appeal to buyers seeking a well-rounded full-size pickup. While newer Sierra 1500 models offer even more advanced technology and features, this generation represents a solid and reliable option for those looking for a capable and affordable truck. The L86 engine, while not without its potential issues, has proven to be a durable and long-lasting powerplant when properly maintained.
